Playing logic puzzle on a daily basis helps to keep an active mind and players often see improvements in their overall concentration.This Logic Puzzles book is packed with the following features: - 100 Medium Large Print Logic Puzzles (Kakuro 20x20, Samurai Sudoku, Battleships 15x15, Hakyuu 24x24, Minesweeper 30x30, Hitori 30x30, Samurai Jigsaw Sudoku, Fillomino 25x25, Shikaku 30x30 and Sudoku 16x16).- Answers to every puzzle are provided.- Each puzzle is guaranteed to have only one solution.Includes free bonus puzzles you can download book (Tons of Sudoku Puzzles for Adults & Seniors) Includes free bonus puzzles you can download book (Word Search With Hidden Message: 102 Puzzles for Adults and Seniors)